Ash Cloud Drifts South, May Close Ireland Airports

The volcanic ash cloud that wreaked havoc on European air travel last month may still cause problems in Ireland.

The Irish Aviation Authority said it may impose a no-fly zone over the country Tuesday as the cloud drifts southward. The restrictions could affect Dublin, Shannon and some regional airports, according to the IAA.

The restrictions are not expected to affect flights from the United Kingdom and Europe flying over Ireland.

The IAA will post a statement on possible delays on its web site at 8:30 p.m. local time (3:30 p.m. EDT).